#include "environment.h"
#include "exec-cmd.h"
#include "gettext.h"
+#include "hex.h"
#include "object-name.h"
#include "refs.h"
#include "repository.h"
#include "quote.h"
#include "trace2.h"
#include "worktree.h"
+#include "exec-cmd.h"
static int inside_git_dir = -1;
static int inside_work_tree = -1;
return ret;
}
+static int validate_headref(const char *path)
+{
+ struct stat st;
+ char buffer[256];
+ const char *refname;
+ struct object_id oid;
+ int fd;
+ ssize_t len;
+
+ if (lstat(path, &st) < 0)
+ return -1;
+
+ /* Make sure it is a "refs/.." symlink */
+ if (S_ISLNK(st.st_mode)) {
+ len = readlink(path, buffer, sizeof(buffer)-1);
+ if (len >= 5 && !memcmp("refs/", buffer, 5))
+ return 0;
+ return -1;
+ }
+
+ /*
+ * Anything else, just open it and try to see if it is a symbolic ref.
+ */
+ fd = open(path, O_RDONLY);
+ if (fd < 0)
+ return -1;
+ len = read_in_full(fd, buffer, sizeof(buffer)-1);
+ close(fd);
+
+ if (len < 0)
+ return -1;
+ buffer[len] = '\0';
+
+ /*
+ * Is it a symbolic ref?
+ */
+ if (skip_prefix(buffer, "ref:", &refname)) {
+ while (isspace(*refname))
+ refname++;
+ if (starts_with(refname, "refs/"))
+ return 0;
+ }
+
+ /*
+ * Is this a detached HEAD?
+ */
+ if (get_oid_hex_any(buffer, &oid) != GIT_HASH_UNKNOWN)
+ return 0;
+
+ return -1;
+}
+
/*
* Test if it looks like we're at a git directory.
* We want to see:
"extensions.objectformat", value);
data->hash_algo = format;
return EXTENSION_OK;
+ } else if (!strcmp(ext, "compatobjectformat")) {
+ struct string_list_item *item;
+ int format;
+
+ if (!value)
+ return config_error_nonbool(var);
+ format = hash_algo_by_name(value);
+ if (format == GIT_HASH_UNKNOWN)
+ return error(_("invalid value for '%s': '%s'"),
+ "extensions.compatobjectformat", value);
+ /* For now only support compatObjectFormat being specified once. */
+ for_each_string_list_item(item, &data->v1_only_extensions) {
+ if (!strcmp(item->string, "compatobjectformat"))
+ return error(_("'%s' already specified as '%s'"),
+ "extensions.compatobjectformat",
+ hash_algos[data->compat_hash_algo].name);
+ }
+ data->compat_hash_algo = format;
+ return EXTENSION_OK;
} else if (!strcmp(ext, "refstorage")) {
unsigned int format;
return data.is_safe;
}
+void die_upon_dubious_ownership(const char *gitfile, const char *worktree,
+ const char *gitdir)
+{
+ struct strbuf report = STRBUF_INIT, quoted = STRBUF_INIT;
+ const char *path;
+
+ if (ensure_valid_ownership(gitfile, worktree, gitdir, &report))
+ return;
+
+ strbuf_complete(&report, '\n');
+ path = gitfile ? gitfile : gitdir;
+ sq_quote_buf_pretty("ed, path);
+
+ die(_("detected dubious ownership in repository at '%s'\n"
+ "%s"
+ "To add an exception for this directory, call:\n"
+ "\n"
+ "\tgit config --global --add safe.directory %s"),
+ path, report.buf, quoted.buf);
+}
+
static int allowed_bare_repo_cb(const char *key, const char *value,
const struct config_context *ctx UNUSED,
void *d)
return NULL;
}
+static int is_implicit_bare_repo(const char *path)
+{
+ /*
+ * what we found is a ".git" directory at the root of
+ * the working tree.
+ */
+ if (ends_with_path_components(path, ".git"))
+ return 1;
+
+ /*
+ * we are inside $GIT_DIR of a secondary worktree of a
+ * non-bare repository.
+ */
+ if (strstr(path, "/.git/worktrees/"))
+ return 1;
+
+ /*
+ * we are inside $GIT_DIR of a worktree of a non-embedded
+ * submodule, whose superproject is not a bare repository.
+ */
+ if (strstr(path, "/.git/modules/"))
+ return 1;
+
+ return 0;
+}
+
/*
* We cannot decide in this function whether we are in the work tree or
* not, since the config can only be read _after_ this function was called.
if (is_git_directory(dir->buf)) {
trace2_data_string("setup", NULL, "implicit-bare-repository", dir->buf);
if (get_allowed_bare_repo() == ALLOWED_BARE_REPO_EXPLICIT &&
- !ends_with_path_components(dir->buf, ".git"))
+ !is_implicit_bare_repo(dir->buf))
return GIT_DIR_DISALLOWED_BARE;
if (!ensure_valid_ownership(NULL, NULL, dir->buf, report))
return GIT_DIR_INVALID_OWNERSHIP;
}
if (startup_info->have_repository) {
repo_set_hash_algo(the_repository, repo_fmt.hash_algo);
+ repo_set_compat_hash_algo(the_repository,
+ repo_fmt.compat_hash_algo);
repo_set_ref_storage_format(the_repository,
repo_fmt.ref_storage_format);
the_repository->repository_format_worktree_config =
check_repository_format_gently(get_git_dir(), fmt, NULL);
startup_info->have_repository = 1;
repo_set_hash_algo(the_repository, fmt->hash_algo);
+ repo_set_compat_hash_algo(the_repository, fmt->compat_hash_algo);
repo_set_ref_storage_format(the_repository,
fmt->ref_storage_format);
the_repository->repository_format_worktree_config =
#endif
}
+struct template_dir_cb_data {
+ char *path;
+ int initialized;
+};
+
+static int template_dir_cb(const char *key, const char *value,
+ const struct config_context *ctx, void *d)
+{
+ struct template_dir_cb_data *data = d;
+
+ if (strcmp(key, "init.templatedir"))
+ return 0;
+
+ if (!value) {
+ data->path = NULL;
+ } else {
+ char *path = NULL;
+
+ FREE_AND_NULL(data->path);
+ if (!git_config_pathname((const char **)&path, key, value))
+ data->path = path ? path : xstrdup(value);
+ }
+
+ return 0;
+}
+
+const char *get_template_dir(const char *option_template)
+{
+ const char *template_dir = option_template;
+
+ if (!template_dir)
+ template_dir = getenv(TEMPLATE_DIR_ENVIRONMENT);
+ if (!template_dir) {
+ static struct template_dir_cb_data data;
+
+ if (!data.initialized) {
+ git_protected_config(template_dir_cb, &data);
+ data.initialized = 1;
+ }
+ template_dir = data.path;
+ }
+ if (!template_dir) {
+ static char *dir;
+
+ if (!dir)
+ dir = system_path(DEFAULT_GIT_TEMPLATE_DIR);
+ template_dir = dir;
+ }
+ return template_dir;
+}
+
#ifdef NO_TRUSTABLE_FILEMODE
#define TEST_FILEMODE 0
#else
}
}
-static void copy_templates(const char *template_dir, const char *init_template_dir)
+static void copy_templates(const char *option_template)
{
+ const char *template_dir = get_template_dir(option_template);
struct strbuf path = STRBUF_INIT;
struct strbuf template_path = STRBUF_INIT;
size_t template_len;
DIR *dir;
char *to_free = NULL;
- if (!template_dir)
- template_dir = getenv(TEMPLATE_DIR_ENVIRONMENT);
- if (!template_dir)
- template_dir = init_template_dir;
- if (!template_dir)
- template_dir = to_free = system_path(DEFAULT_GIT_TEMPLATE_DIR);
- if (!template_dir[0]) {
- free(to_free);
+ if (!template_dir || !*template_dir)
return;
- }
strbuf_addstr(&template_path, template_dir);
strbuf_complete(&template_path, '/');
char repo_version_string[10];
int repo_version = GIT_REPO_VERSION;
+ /*
+ * Note that we initialize the repository version to 1 when the ref
+ * storage format is unknown. This is on purpose so that we can add the
+ * correct object format to the config during git-clone(1). The format
+ * version will get adjusted by git-clone(1) once it has learned about
+ * the remote repository's format.
+ */
if (hash_algo != GIT_HASH_SHA1 ||
ref_storage_format != REF_STORAGE_FORMAT_FILES)
repo_version = GIT_REPO_VERSION_READ;
"%d", repo_version);
git_config_set("core.repositoryformatversion", repo_version_string);
- if (hash_algo != GIT_HASH_SHA1)
+ if (hash_algo != GIT_HASH_SHA1 && hash_algo != GIT_HASH_UNKNOWN)
git_config_set("extensions.objectformat",
hash_algos[hash_algo].name);
else if (reinit)
const char *initial_branch, int quiet)
{
struct strbuf err = STRBUF_INIT;
+ char *to_free = NULL;
int reinit = is_reinit();
repo_set_ref_storage_format(the_repository, ref_storage_format);
- if (refs_init_db(get_main_ref_store(the_repository), 0, &err))
+ if (ref_store_create_on_disk(get_main_ref_store(the_repository), 0, &err))
die("failed to set up refs db: %s", err.buf);
/*
char *ref;
if (!initial_branch)
- initial_branch = git_default_branch_name(quiet);
+ initial_branch = to_free =
+ repo_default_branch_name(the_repository, quiet);
ref = xstrfmt("refs/heads/%s", initial_branch);
if (check_refname_format(ref, 0) < 0)
die(_("invalid initial branch name: '%s'"),
initial_branch);
- if (create_symref("HEAD", ref, NULL) < 0)
+ if (refs_update_symref(get_main_ref_store(the_repository), "HEAD", ref, NULL) < 0)
exit(1);
free(ref);
}
initial_branch);
strbuf_release(&err);
+ free(to_free);
}
static int create_default_files(const char *template_path,
const char *original_git_dir,
const struct repository_format *fmt,
- int prev_bare_repository,
int init_shared_repository)
{
struct stat st1;
char *path;
int reinit;
int filemode;
- const char *init_template_dir = NULL;
const char *work_tree = get_git_work_tree();
/*
* values (since we've just potentially changed what's available on
* disk).
*/
- git_config_get_pathname("init.templatedir", &init_template_dir);
- copy_templates(template_path, init_template_dir);
- free((char *)init_template_dir);
+ copy_templates(template_path);
git_config_clear();
reset_shared_repository();
git_config(git_default_config, NULL);
*/
if (init_shared_repository != -1)
set_shared_repository(init_shared_repository);
- /*
- * TODO: heed core.bare from config file in templates if no
- * command-line override given
- */
- is_bare_repository_cfg = prev_bare_repository || !work_tree;
- /* TODO (continued):
- *
- * Unfortunately, the line above is equivalent to
- * is_bare_repository_cfg = !work_tree;
- * which ignores the config entirely even if no `--[no-]bare`
- * command line option was present.
- *
- * To see why, note that before this function, there was this call:
- * prev_bare_repository = is_bare_repository()
- * expanding the right hand side:
- * = is_bare_repository_cfg && !get_git_work_tree()
- * = is_bare_repository_cfg && !work_tree
- * note that the last simplification above is valid because nothing
- * calls repo_init() or set_git_work_tree() between any of the
- * relevant calls in the code, and thus the !get_git_work_tree()
- * calls will return the same result each time. So, what we are
- * interested in computing is the right hand side of the line of
- * code just above this comment:
- * prev_bare_repository || !work_tree
- * = is_bare_repository_cfg && !work_tree || !work_tree
- * = !work_tree
- * because "A && !B || !B == !B" for all boolean values of A & B.
- */
+
+ is_bare_repository_cfg = !work_tree;
/*
* We would have created the above under user's umask -- under
int exist_ok = flags & INIT_DB_EXIST_OK;
char *original_git_dir = real_pathdup(git_dir, 1);
struct repository_format repo_fmt = REPOSITORY_FORMAT_INIT;
- int prev_bare_repository;
if (real_git_dir) {
struct stat st;
safe_create_dir(git_dir, 0);
- prev_bare_repository = is_bare_repository();
/* Check to see if the repository version is right.
* Note that a newly created repository does not have
validate_ref_storage_format(&repo_fmt, ref_storage_format);
reinit = create_default_files(template_dir, original_git_dir,
- &repo_fmt, prev_bare_repository,
- init_shared_repository);
+ &repo_fmt, init_shared_repository);
/*
* Now that we have set up both the hash algorithm and the ref storage